(9分之7-6分之5+18分之3)*18+3.95*6-1.45*6
问题描述:
(9分之7-6分之5+18分之3)*18+3.95*6-1.45*6
答
(9分之7-6分之5+18分之3)*18+3.95*6-1.45*6
=9分之7*18-6分之5*18+18分之3*18+(3.95-1.45)*6
=14-15+3+2.5*6
=2+15
=17